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[Processing] Retry gdal commands if they are interrupted

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This commit is contained in:
Matthias Kuhn 2016-04-18 08:34:32 +02:00
parent 7cb77d8cfd
commit 09a2f9b343
1 changed files with 24 additions and 16 deletions
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40
python/plugins/processing/algs/gdal/GdalUtils.py
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@ -67,26 +67,34 @@ class GdalUtils:
envval += '{}{}'.format(os.pathsep, path)
os.putenv('PATH', envval)
loglines = []
loglines.append('GDAL execution console output')
fused_command = ' '.join([unicode(c) for c in commands])
progress.setInfo('GDAL command:')
progress.setCommand(fused_command)
proc = subprocess.Popen(
fused_command,
shell=True,
stdout=subprocess.PIPE,
stdin=open(os.devnull),
stderr=subprocess.STDOUT,
universal_newlines=True,
).stdout
progress.setInfo('GDAL command output:')
try:
for line in proc:
progress.setConsoleInfo(line)
loglines.append(line)
except IOError as e:
raise IOError(e.message + u'\nAfter reading {} lines, last lines: {}'.format(len(loglines), u'\n'.join(loglines[-10:])))
success = False
retry_count = 0
while success == False:
loglines = []
loglines.append('GDAL execution console output')
try:
proc = subprocess.Popen(
fused_command,
shell=True,
stdout=subprocess.PIPE,
stdin=open(os.devnull),
stderr=subprocess.STDOUT,
universal_newlines=True,
).stdout
for line in proc:
progress.setConsoleInfo(line)
loglines.append(line)
success = True
except IOError as e:
if retry_count < 5:
retry_count += 1
else:
raise IOError(e.message + u'\nTried 5 times without success. Last iteration stopped after reading {} line(s).\nLast line(s):\n{}'.format(len(loglines), u'\n'.join(loglines[-10:])))
ProcessingLog.addToLog(ProcessingLog.LOG_INFO, loglines)
GdalUtils.consoleOutput = loglines